Coffee Machine Pre-Infusion Optimization for Bean-Adaptive Brewing

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Solution Overview

Problem

Existing coffee beverage preparation machines require significant user expertise and manual adjustments to achieve high-quality beverages, as settings can be affected by factors like component wear and coffee bean characteristics, leading to inconsistent results.

Innovation Solution

A method and machine that automatically optimize pre-infusion and infusion parameters based on coffee bean origin, roasting level, and granulometry, using algorithms to adjust quantities of coffee and water, monitor extraction parameters, and provide feedback-driven corrections to maintain consistent brewing quality.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Reliability

If manual modification of machine setting parameters is performed to optimize beverage quality, then beverage quality can be improved, but user expertise and time are required which reduces ease of operation

Engineering Contradiction:
Improvebeverage quality consistencyVSAvoiduser operation complexity
Core Design Contradiction:
ReliabilityVSEase of operation

Solution Approach 1:

The machine performs self-adjustment of setting parameters by automatically modifying one or more setting parameters of at least one component based on monitoring data, eliminating the need for manual user intervention and expertise while maintaining optimal beverage quality

Inventive Principle:
Principle #25Self-service

Solution Approach 2:

The system monitors extraction parameters during beverage preparation and uses this feedback to automatically adjust setting parameters, creating a closed-loop control system that maintains consistency without requiring user intervention

Inventive Principle:
Principle #23Feedback

2Device complexity

If setting parameters are kept constant over time, then machine simplicity is maintained, but component wear and accumulation affect extraction quality

Engineering Contradiction:
Improvemachine setting complexityVSAvoidextraction quality consistency
Core Design Contradiction:
Device complexityVSReliability

Solution Approach 1:

The system dynamically adjusts setting parameters based on monitored extraction parameters and detected deviations, transitioning from static constant settings to adaptive dynamic settings that compensate for component wear and maintain consistent quality

Inventive Principle:
Principle #15Dynamics

Solution Approach 2:

The system automatically modifies setting parameters of machine components based on detected deviations in extraction parameters, changing physical or operational parameters to compensate for wear and maintain optimal performance

Inventive Principle:
Principle #35Parameter changes

3Reliability

If pre-infusion parameters are optimized for different coffee bean types, then extraction quality is improved, but device complexity increases

Engineering Contradiction:
Improveextraction optimizationVSAvoidparameter adjustment complexity
Core Design Contradiction:
ReliabilityVSDevice complexity

Solution Approach 1:

The machine automatically determines and adjusts pre-infusion parameters based on coffee bean characteristics without requiring manual user configuration, performing the optimization function autonomously

Inventive Principle:
Principle #25Self-service

Solution Approach 2:

The system performs preliminary optimization of pre-infusion parameters based on coffee bean type before the actual brewing process, preparing optimal settings in advance to ensure quality extraction

Inventive Principle:
Principle #10Preliminary action

Data Source

PatentUS20250098893A1Method and machine for preparing coffee beverages
Publication Date: 2025.03.27 DE LONGHI APPLIANCES SRL
  • US20250098893A1 patent drawing
  • US20250098893A1 patent drawing
  • US20250098893A1 patent drawing

AI summary

A method for a machine (10) for preparing a coffee beverage, in which a dose of coffee powder is supplied to an infusion chamber (14), and a pre-infusion step and subsequently an infusion step of said powder dose is performed in order to dispense the beverage. The method provides to perform at least a first optimization of the operating parameters of said machine (10) comprising receiving an indication regarding an origin and a roasting level of said beans and executing an algorithm to define at least a weight of a quantity of coffee (Q coffee) to be used for said dose of powder, and a quantity of water (Q_water) to be used in said pre-infusion step. Embodiments disclosed herein further relate to a machine for preparing beverages which implements such a method.